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Unique and Specific m6A RNA Methylation in Mouse Embryonic and Postnatal Cerebral Cortices.


ABSTRACT: N6-methyladenosine (m6A)-mediated epitranscriptomic regulation is critical for various physiological processes. Genetic studies demonstrate that proper m6A-methylation is required for mouse brain development and function. Revealing landscapes of m6A-methylation in the cerebral cortex at different developmental stages will help to understand the biological meaning of epitranscriptomic regulation. Here, we depict the temporal-specific m6A-methylation status in mouse embryonic and postnatal cortices using methylated RNA immunoprecipitation (MeRIP) sequencing. We identified unique m6A binding motifs in stage-specific RNAs and found that more RNA transcripts are temporally methylated in embryonic cortices than in postnatal ones. Moreover, we found that cortical transcription factors and genes associated with neurological disorders are broadly as well specifically methylated at m6A sites. Our study highlights the importance of epitranscriptomic regulation in the developing cortex and provides a fundamental reference for future mechanistic examinations of m6A methylation-mediated gene expression regulation in normal brain development and neurological disorders.

SUBMITTER: Zhang L 

PROVIDER: S-EPMC7650744 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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Unique and Specific m<sup>6</sup>A RNA Methylation in Mouse Embryonic and Postnatal Cerebral Cortices.

Zhang Longbin L   Du Kunzhao K   Wang Jing J   Nie Yanzhen Y   Lee Trevor T   Sun Tao T  

Genes 20200927 10


N<sup>6</sup>-methyladenosine (m<sup>6</sup>A)-mediated epitranscriptomic regulation is critical for various physiological processes. Genetic studies demonstrate that proper m<sup>6</sup>A-methylation is required for mouse brain development and function. Revealing landscapes of m<sup>6</sup>A-methylation in the cerebral cortex at different developmental stages will help to understand the biological meaning of epitranscriptomic regulation. Here, we depict the temporal-specific m<sup>6</sup>A-meth  ...[more]

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